CLAS Physics Database

Measurement E213M602

Experiment: E1-6, 2025
Year: 2001

Experiment comment:

Experiment year: 2001—2002
Spokespersons: R.W. Gothe, A. Trivedi
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/dM(π+)
Q2: 2.4 — 3.0 GeV2
W: 1.925 — 1.95 GeV
Ebeam: 5.754 GeV

Measurement data
M(π+), [GeV] dσ/dM(π+), [μb/GeV] uncertainty syst. uncert. total uncert.
0.30709 0.5459 0.0625 0.1768 1.5724
0.362989 3.3757 0.2326 0.6863 0.968
0.418888 4.8797 0.2783 0.944 1.338
0.474787 4.9879 0.2584 0.9461 1.3396
0.530686 5.356 0.2809 0.9766 1.3771
0.586586 5.8879 0.2723 0.9993 1.4083
0.642485 7.5075 0.4771 1.1095 1.2078
0.698384 10.8951 0.5392 1.3006 1.4079
0.754283 15.0038 0.6854 1.683 1.8172
0.810182 11.5433 0.663 1.4422 2.0401
0.866081 6.7904 0.3939 0.974 1.3774
0.92198 3.3284 0.2298 0.3852 0.5481
0.977879 1.3414 0.1073 0.1502 2.1126
1.033778 0.001 0.0005 0.0006 0.0007